package com.itcast.controller;

import com.alibaba.dubbo.config.annotation.Reference;
import com.itcast.constant.MessageConstant;
import com.itcast.entity.Result;
import com.itcast.pojo.Member;
import com.itcast.service.ReportService;
import com.itcast.untils.DateUtils;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.junit.Test;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.*;

@RestController
@RequestMapping("/report")
public class ReportController {
    @Reference
    private ReportService reportService;
    /**
     * 会员数量统计
     * @return
     * @throws Exception
     */
    @RequestMapping("/getMemberReport")
    public Result getMemberReport() throws Exception {
        /**
         * {
         *     "months":["2019.01","2019.02"],
         *     "memberCount":[12,15]
         * }
         */
        //年月的封装
        List<String> dates = new ArrayList<>();
        //获取当前的日期
        Calendar calendar = Calendar.getInstance();
//        //调用工具类进行转化
        calendar.add(calendar.MONTH,-12);
      for(int i = 1; i <= 12;i++){
          calendar.add(calendar.MONTH,1);
          dates.add(new SimpleDateFormat("yyyy.MM").format(calendar.getTime()));
      }
        //从数据库中查找会员的数量
        List<Integer> memberCount = reportService.find(dates);
        Map<String,Object> map = new HashMap<>();
        map.put("months",dates);
        map.put("memberCount",memberCount);
        return new Result(true,MessageConstant.QUERY_SETMEAL_SUCCESS,map);
    }

    /**
     * 查询套餐占比情况
     * @return
     */
    @RequestMapping("/getSetmealReport")
    public Result getSetmealReport(){
        try {
           Map<String,Object> map =  reportService.getSetmealReport();
            return new Result(true,MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS ,map);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_SETMEAL_COUNT_REPORT_FAIL);
        }
    }

    /**
     * 会员数据统计
     * @return
     */
    @RequestMapping("/getBusinessReportData")
    public Result getBusinessReportData(){
        try {
            Map<String, Object> map = reportService.getBusinessReportData();
            return new Result(true,MessageConstant.GET_BUSINESS_REPORT_SUCCESS,map);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_SETMEAL_COUNT_REPORT_FAIL);
        }
    }
    /*
    文件模版的下载
     */
    @RequestMapping("/exportBusinessReport")
    public Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response) throws IOException {
        //获取表格数据
        Map<String, Object> result = reportService.getBusinessReportData();
        //取出返回结果数据，准备将报表数据写入到Excel文件中     
        String reportDate = (String)result.get("reportDate");
        Integer todayNewMember = (Integer)result.get("todayNewMember");
        Integer totalMember = (Integer)result.get("totalMember");
        Integer thisWeekNewMember = (Integer) result.get("thisWeekNewMember");
        Integer thisMonthNewMember = (Integer)result.get("thisMonthNewMember");
        Integer todayOrderNumber = (Integer)result.get("todayOrderNumber");
        Integer thisWeekOrderNumber = (Integer)result.get("thisWeekOrderNumber");
        Integer thisMonthOrderNumber = (Integer)result.get("thisMonthOrderNumber");
        Integer todayVisitsNumber = (Integer)result.get("todayVisitsNumber");
        Integer thisWeekVisitsNumber = (Integer)result.get("thisWeekVisitsNumber");
        Integer thisMonthVisitsNumber= (Integer) result.get("thisMonthVisitsNumber");
        List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");
        //加载本地的exsl模版
        String file = request.getSession().getServletContext().getRealPath("template") + File.separator + "report_template.xlsx";
       //创建xl文件
        XSSFWorkbook book = new XSSFWorkbook(new FileInputStream(new File(file)));
        //读取第一个文档
        XSSFSheet sheet = book.getSheetAt(0);
        XSSFRow row = sheet.getRow(2);
        row.getCell(5).setCellValue(reportDate);//日期

        row = sheet.getRow(4);
        row.getCell(5).setCellValue(todayNewMember);//新增会员数（本日）
        row.getCell(7).setCellValue(totalMember);//总会员数

        row = sheet.getRow(5);
        row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
        row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数

        row = sheet.getRow(7);
        row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
        row.getCell(7).setCellValue(todayVisitsNumber);//今日到诊数

        row = sheet.getRow(8);
        row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
        row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周到诊数

        row = sheet.getRow(9);
        row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
        row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月到诊数

        int rowNum = 12;
        for(Map map : hotSetmeal){//热门套餐
            String name = (String) map.get("name");
            Long setmeal_count = (Long) map.get("setmeal_count");
            BigDecimal proportion = (BigDecimal) map.get("proportion");
            row = sheet.getRow(rowNum ++);
            row.getCell(4).setCellValue(name);//套餐名称
            row.getCell(5).setCellValue(setmeal_count);//预约数量
            row.getCell(6).setCellValue(proportion.doubleValue());//占比
        }
        //获取输出流进行文件下载
        OutputStream outputStream = response.getOutputStream();
        OutputStream out = response.getOutputStream();
        response.setContentType("application/vnd.ms-excel");//代表的是Excel文件类型
        response.setHeader("content-Disposition", "attachment;filename=report.xlsx");//指定以附件形式进行下载
        book.write(out);

        out.flush();
        out.close();
        book.close();
        return null;
    }
}
